单项选择题

You are responsible for （）hatches today.

A.close
B.toclose
C.closing
D.closed

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单项选择题

The ship may （）to one side seriously.

A.pitch
B.roll
C.list
D.upset

单项选择题

Please tell stevedores not to （）the derrick.

A.overload
B.load
C.unload
D.discharge

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